### BAD::1 March 2006 (Factorial Usage)

`1 March 2006` in `MM/DD/YY` format is `03/01/06`.

The following demonstrates the factorial function.

```   0! = 1
1! = 1
2! = 2 x 1 = 2
3! = 3 x 2 x 1 = 6
4! = 4 x 3 x 2 x 1 = 24
5! = 5 x 4! = 5 x 24 = 120
```

`1 March 2006` is a BAD if factorial is used.

```   date: 03/01/06
numbers: 3, 1, 6

3! x 1 = 6 x 1 = 6
```

Wikipedia.org:: Factorial

##### Updated::2015.04.27

BADs are a form of equationeering and here are more BAD equations.

```   3/1/06:  1 * 3! = 6
3/1/06:  3!^1 = 6
3/1/06:  (6 % 3)! = 1
3/1/06:  (6 - 3!)! = 1
3/1/06:  summation(1, 3) = 6
3/1/06:  (1 + 3!) * 6 = 42                   [bad42Eval]
3/1/06:  1 + 3! * 6 = 37                     [bad37Eval]
3/1/06:  1 + 6 / 3 = 3                       [badCardinalityEval]
3/1/06:  cuberoot(summation(1, 3!) + 6) = 3  [badCardinalityEval]
3/1/06:  median(1, 3, 6) = 3                 [badCardinalityEval]
3/1/06:  cuberoot(sqrt(3^6)) / 1 = 3         [badCardinalityEval]
```

bad42Eval: Find an expression that evaluates to 42.

bad37Eval: Find an expression that evaluates to 37.

badCardinalityEval: Find an expression that evaluates to 3 (i.e. the number of numbers in the date).

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 25 February 2006
``` + updated the Creative Commons License on 27 April 2015 + added numerous equations on 27 April 2015 ```